package com.edu.demo.config;

import com.edu.demo.filter.JwtAuthenticationTokenFilter;
import com.edu.demo.service.impl.AuthenticationEntryPointImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import org.springframework.security.web.authentication.logout.LogoutFilter;
import org.springframework.web.filter.CorsFilter;

/**
 * @ClassName: SecurityConfig
 * @Description:
 * @Author: jxw
 * @Date: 2023-01-25
 */
@EnableGlobalMethodSecurity(prePostEnabled = true, securedEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    @Qualifier(value = "userDetailServiceImpl")
    private UserDetailsService userDetailsService;

    @Autowired
    private AuthenticationEntryPointImpl unauthorizedHandler;

    @Autowired
    private JwtAuthenticationTokenFilter authenticationTokenFilter;


//    /**
//     * 跨域过滤器
//     */
    @Autowired
    private CorsFilter corsFilter;

    /**
     * 强散列哈希加密实现
     */
    @Bean
    public BCryptPasswordEncoder bCryptPasswordEncoder()
    {
        return new BCryptPasswordEncoder();
    }


    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception
    {
        return super.authenticationManagerBean();
    }

    /**
     * 身份认证接口
     */
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception
    {
        auth.userDetailsService(userDetailsService).passwordEncoder(bCryptPasswordEncoder());
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {

        http
            // CSRF禁用，因为不使用session
            .csrf().disable()
            // 认证失败处理类
            .exceptionHandling().authenticationEntryPoint(unauthorizedHandler).and()
            // 基于token，所以不需要session
            .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and()
            // 过滤请求
            .authorizeRequests()
            // 对于登录login 注册register 验证码captchaImage 允许匿名访问/static
            .antMatchers("/login", "/register", "/captcha","/**.txt","/project/test","/static/**","/favicon.ico").anonymous()

            // 静态资源，可登录后访问
            .antMatchers(HttpMethod.GET, "/", "/*.html", "/**/*.html", "/**/*.css", "/**/*.js", "/profile/**").permitAll()
            .antMatchers("/swagger-ui.html", "/swagger-resources/**", "/webjars/**", "/*/api-docs", "/druid/**").permitAll()
            // 除上面外的所有请求全部需要鉴权认证
            .anyRequest().authenticated()
            .and()
            .headers().frameOptions().disable();

        // 添加Logout filter
//        http.logout().logoutUrl("/logout").logoutSuccessHandler(logoutSuccessHandler);
        // 添加JWT filter
        http.addFilterBefore(authenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);
        // 添加CORS filter
        http.addFilterBefore(corsFilter, JwtAuthenticationTokenFilter.class);
        http.addFilterBefore(corsFilter, LogoutFilter.class);
    }


    //接口开发
    @Override
    public void configure(WebSecurity web) throws Exception {
        //ignore
        web.ignoring()
                .antMatchers("/static/**");
    }

}
